PyQT5 实现计算器及StackedWidget的使用

实现效果

 完整代码

        将ui转成代码后，通过继承的方式使用界面代码。CMainWindow中实现的是主要逻辑代码。

import sys

from PyQt5 import QtWidgets
from PyQt5.QtGui import QPixmap

from Ui_Mainwindow import Ui_MainWindow


class CMainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    number1 = 0
    number2 = 0
    type = 0
    s = ""

    def __init__(self, parent=None):
        super(CMainWindow, self).__init__(parent)
        self.setupUi(self)
        pixmap = QPixmap(r'computer.png')  # 按指定路径找到图片
        # 点击左侧按钮页面1切换到第一个页面
        self.pushButton.clicked.connect(self.display_page1)
        # 点击左侧按钮页面2切换到第二个页面
        self.pushButton_2.clicked.connect(self.display_page2)
        # 点击左侧按钮页面3切换到第三个页面
        self.pushButton_3.clicked.connect(self.display_page3)

        # 主窗体设置
        self.setFixedSize(self.width(), self.height())
        self.label_4.setPixmap(pixmap)
        self.label_4.setScaledContents(True)
        self.show()

    def btnAdd_clicked(self):
        self.lineEdit.insert(" + ")

    def AddNumber(self, number):
        print(self.s)
        self.lineEdit.setText(self.s)

    def Push00(self):
        self.s = self.s + "00"
        self.lineEdit.insert("00")

    def Push0(self):
        self.s = self.s + "0"
        self.lineEdit.insert("0")

    def Push1(self):
        self.s = self.s + "1"
        self.lineEdit.insert("1")

    def Push2(self):
        self.s = self.s + "2"
        self.lineEdit.insert("2")

    def Push3(self):
        self.s = self.s + "3"
        self.lineEdit.insert("3")

    def Push4(self):
        self.s = self.s + "4"
        self.lineEdit.insert("4")

    def Push5(self):
        self.s = self.s + "5"
        self.lineEdit.insert("5")

    def Push6(self):
        self.s = self.s + "6"
        self.lineEdit.insert("6")

    def Push7(self):
        self.s = self.s + "7"
        self.lineEdit.insert("7")

    def Push8(self):
        self.s = self.s + "8"
        self.lineEdit.insert("8")

    def Push9(self):
        self.s = self.s + "9"
        self.lineEdit.insert("9")

    def PushDot(self):
        self.s = self.s + "."
        self.lineEdit.insert(".")

    def PushClr(self):
        self.s = ""
        self.lineEdit.setText("")

    def PushAdd(self):
        self.number1 = float(self.lineEdit.text())
        self.type = 1
        self.s = self.s + "+"
        self.lineEdit.insert("+")

    def PushSub(self):
        self.number1 = float(self.lineEdit.text())
        self.type = 3
        self.s = self.s + "-"
        self.lineEdit.insert("-")

    def PushMul(self):
        self.type = 2
        self.s = self.s + "*"
        self.lineEdit.insert("*")

    def PushDiv(self):
        self.type = 2
        self.s = self.s + "/"
        self.lineEdit.insert("/")

    def PushEqr(self):  # 重写计算函数
        result = eval(self.s)  # 计算
        self.lineEdit.setText(str(result))

    # 页面1
    def display_page1(self):
        self.stackedWidget.setCurrentIndex(0)

    def display_page2(self):
        self.stackedWidget.setCurrentIndex(1)

    # 页面2
    def display_page3(self):
        self.stackedWidget.setCurrentIndex(2)


if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    w = CMainWindow()
    w.setWindowTitle("百宝箱")

    w.show()
    sys.exit(app.exec_())

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'c:\Users\吴华锦\Desktop\大作业\Mainwindow.ui'
#
# Created by: PyQt5 UI code generator 5.15.7
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(1206, 822)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.layoutWidget = QtWidgets.QWidget(self.centralwidget)
        self.layoutWidget.setGeometry(QtCore.QRect(10, 20, 1011, 651))
        self.layoutWidget.setObjectName("layoutWidget")
        self.horizontalLayout = QtWidgets.QHBoxLayout(self.layoutWidget)
        self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.frame = QtWidgets.QFrame(self.layoutWidget)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
        sizePolicy.setHorizontalStretch(1)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.frame.sizePolicy().hasHeightForWidth())
        self.frame.setSizePolicy(sizePolicy)
        self.frame.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame.setObjectName("frame")
        self.pushButton = QtWidgets.QPushButton(self.frame)
        self.pushButton.setGeometry(QtCore.QRect(20, 80, 93, 28))
        self.pushButton.setStyleSheet("QPushButton{\n"
                                      "    background-color:rgb(0, 174, 236); \n"
                                      "\n"
                                      "}\n"
                                      "\n"
                                      "QPushButton::hover{\n"
                                      "    background-color:rgb(0); \n"
                                      "\n"
                                      "}")
        self.pushButton.setObjectName("pushButton")
        self.pushButton_2 = QtWidgets.QPushButton(self.frame)
        self.pushButton_2.setGeometry(QtCore.QRect(20, 140, 93, 28))
        self.pushButton_2.setStyleSheet("QPushButton{\n"
                                        "    background-color:rgb(0, 174, 236); \n"
                                        "\n"
                                        "}\n"
                                        "\n"
                                        "QPushButton::hover{\n"
                                        "    background-color:rgb(0); \n"
                                        "\n"
                                        "}")
        self.pushButton_2.setObjectName("pushButton_2")
        self.pushButton_3 = QtWidgets.QPushButton(self.frame)
        self.pushButton_3.setGeometry(QtCore.QRect(20, 210, 93, 28))
        self.pushButton_3.setStyleSheet("QPushButton{\n"
                                        "    background-color:rgb(0, 174, 236); \n"
                                        "\n"
                                        "}\n"
                                        "\n"
                                        "QPushButton::hover{\n"
                                        "    background-color:rgb(0); \n"
                                        "\n"
                                        "}")
        self.pushButton_3.setObjectName("pushButton_3")
        self.horizontalLayout.addWidget(self.frame)
        self.frame_2 = QtWidgets.QFrame(self.layoutWidget)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
        sizePolicy.setHorizontalStretch(5)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.frame_2.sizePolicy().hasHeightForWidth())
        self.frame_2.setSizePolicy(sizePolicy)
        self.frame_2.setFrameShape(QtWidgets.QFrame.StyledPanel)
        self.frame_2.setFrameShadow(QtWidgets.QFrame.Raised)
        self.frame_2.setObjectName("frame_2")
        self.stackedWidget = QtWidgets.QStackedWidget(self.frame_2)
        self.stackedWidget.setGeometry(QtCore.QRect(20, 0, 821, 641))
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.stackedWidget.sizePolicy().hasHeightForWidth())
        self.stackedWidget.setSizePolicy(sizePolicy)
        font = QtGui.QFont()
        font.setFamily("Agency FB")
        font.setPointSize(20)
        self.stackedWidget.setFont(font)
        self.stackedWidget.setStyleSheet("")
        self.stackedWidget.setObjectName("stackedWidget")
        self.page = QtWidgets.QWidget()
        self.page.setStyleSheet("")
        self.page.setObjectName("page")
        self.label = QtWidgets.QLabel(self.page)
        self.label.setGeometry(QtCore.QRect(20, 10, 161, 81))
        font = QtGui.QFont()
        font.setFamily("SimSun-ExtB")
        font.setPointSize(36)
        self.label.setFont(font)
        self.label.setObjectName("label")
        self.butClr = QtWidgets.QPushButton(self.page)
        self.butClr.setGeometry(QtCore.QRect(100, 150, 80, 80))
        self.butClr.setObjectName("butClr")
        self.but7 = QtWidgets.QPushButton(self.page)
        self.but7.setGeometry(QtCore.QRect(100, 230, 80, 80))
        self.but7.setObjectName("but7")
        self.but4 = QtWidgets.QPushButton(self.page)
        self.but4.setGeometry(QtCore.QRect(100, 310, 80, 80))
        self.but4.setObjectName("but4")
        self.lineEdit = QtWidgets.QLineEdit(self.page)
        self.lineEdit.setGeometry(QtCore.QRect(100, 80, 320, 70))
        self.lineEdit.setReadOnly(True)
        self.lineEdit.setObjectName("lineEdit")
        self.butAdd = QtWidgets.QPushButton(self.page)
        self.butAdd.setGeometry(QtCore.QRect(340, 150, 80, 80))
        self.butAdd.setObjectName("butAdd")
        self.but6 = QtWidgets.QPushButton(self.page)
        self.but6.setGeometry(QtCore.QRect(260, 310, 80, 80))
        self.but6.setObjectName("but6")
        self.but9 = QtWidgets.QPushButton(self.page)
        self.but9.setGeometry(QtCore.QRect(260, 230, 80, 80))
        self.but9.setObjectName("but9")
        self.but5 = QtWidgets.QPushButton(self.page)
        self.but5.setGeometry(QtCore.QRect(180, 310, 80, 80))
        self.but5.setObjectName("but5")
        self.butPer = QtWidgets.QPushButton(self.page)
        self.butPer.setGeometry(QtCore.QRect(260, 150, 80, 80))
        self.butPer.setObjectName("butPer")
        self.but1 = QtWidgets.QPushButton(self.page)
        self.but1.setGeometry(QtCore.QRect(100, 390, 80, 80))
        self.but1.setObjectName("but1")
        self.but8 = QtWidgets.QPushButton(self.page)
        self.but8.setGeometry(QtCore.QRect(180, 230, 80, 80))
        self.but8.setObjectName("but8")
        self.butDel = QtWidgets.QPushButton(self.page)
        self.butDel.setGeometry(QtCore.QRect(180, 150, 80, 80))
        self.butDel.setObjectName("butDel")
        self.but2 = QtWidgets.QPushButton(self.page)
        self.but2.setGeometry(QtCore.QRect(180, 390, 80, 80))
        self.but2.setObjectName("but2")
        self.but3 = QtWidgets.QPushButton(self.page)
        self.but3.setGeometry(QtCore.QRect(260, 390, 80, 80))
        self.but3.setObjectName("but3")
        self.butSub = QtWidgets.QPushButton(self.page)
        self.butSub.setGeometry(QtCore.QRect(340, 230, 80, 80))
        self.butSub.setObjectName("butSub")
        self.butMul = QtWidgets.QPushButton(self.page)
        self.butMul.setGeometry(QtCore.QRect(340, 310, 80, 80))
        self.butMul.setObjectName("butMul")
        self.butDiv = QtWidgets.QPushButton(self.page)
        self.butDiv.setGeometry(QtCore.QRect(340, 390, 80, 80))
        self.butDiv.setObjectName("butDiv")
        self.butEqr = QtWidgets.QPushButton(self.page)
        self.butEqr.setGeometry(QtCore.QRect(260, 470, 160, 80))
        self.butEqr.setObjectName("butEqr")
        self.butDot = QtWidgets.QPushButton(self.page)
        self.butDot.setGeometry(QtCore.QRect(180, 470, 80, 80))
        self.butDot.setObjectName("butDot")
        self.but0 = QtWidgets.QPushButton(self.page)
        self.but0.setGeometry(QtCore.QRect(100, 470, 80, 80))
        self.but0.setObjectName("but0")
        self.label_4 = QtWidgets.QLabel(self.page)
        self.label_4.setGeometry(QtCore.QRect(400, 50, 421, 581))
        self.label_4.setText("")
        self.label_4.setObjectName("label_4")
        self.label_4.raise_()
        self.label.raise_()
        self.butClr.raise_()
        self.but7.raise_()
        self.but4.raise_()
        self.lineEdit.raise_()
        self.butAdd.raise_()
        self.but6.raise_()
        self.but9.raise_()
        self.but5.raise_()
        self.butPer.raise_()
        self.but1.raise_()
        self.but8.raise_()
        self.butDel.raise_()
        self.but2.raise_()
        self.but3.raise_()
        self.butSub.raise_()
        self.butMul.raise_()
        self.butDiv.raise_()
        self.butEqr.raise_()
        self.butDot.raise_()
        self.but0.raise_()
        self.stackedWidget.addWidget(self.page)
        self.page_2 = QtWidgets.QWidget()
        self.page_2.setObjectName("page_2")
        self.label_2 = QtWidgets.QLabel(self.page_2)
        self.label_2.setGeometry(QtCore.QRect(10, 10, 161, 81))
        font = QtGui.QFont()
        font.setFamily("SimSun-ExtB")
        font.setPointSize(36)
        self.label_2.setFont(font)
        self.label_2.setObjectName("label_2")
        self.calendarWidget = QtWidgets.QCalendarWidget(self.page_2)
        self.calendarWidget.setGeometry(QtCore.QRect(50, 110, 651, 441))
        self.calendarWidget.setObjectName("calendarWidget")
        self.stackedWidget.addWidget(self.page_2)
        self.page_3 = QtWidgets.QWidget()
        self.page_3.setObjectName("page_3")
        self.label_3 = QtWidgets.QLabel(self.page_3)
        self.label_3.setGeometry(QtCore.QRect(20, 20, 161, 81))
        font = QtGui.QFont()
        font.setFamily("SimSun-ExtB")
        font.setPointSize(36)
        self.label_3.setFont(font)
        self.label_3.setObjectName("label_3")
        self.stackedWidget.addWidget(self.page_3)
        self.horizontalLayout.addWidget(self.frame_2)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 1206, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.stackedWidget.setCurrentIndex(0)
        self.butSub.clicked.connect(MainWindow.PushSub)  # type: ignore
        self.butMul.clicked.connect(MainWindow.PushMul)  # type: ignore
        self.butDiv.clicked.connect(MainWindow.PushDiv)  # type: ignore
        self.butClr.clicked.connect(MainWindow.PushClr)  # type: ignore
        self.but7.clicked.connect(MainWindow.Push7)  # type: ignore
        self.but4.clicked.connect(MainWindow.Push4)  # type: ignore
        self.but1.clicked.connect(MainWindow.Push1)  # type: ignore
        self.but0.clicked.connect(MainWindow.Push0)  # type: ignore
        self.butDot.clicked.connect(MainWindow.PushDot)  # type: ignore
        self.but2.clicked.connect(MainWindow.Push2)  # type: ignore
        self.but5.clicked.connect(MainWindow.Push5)  # type: ignore
        self.but8.clicked.connect(MainWindow.Push8)  # type: ignore
        self.but9.clicked.connect(MainWindow.Push9)  # type: ignore
        self.but6.clicked.connect(MainWindow.Push6)  # type: ignore
        self.but3.clicked.connect(MainWindow.Push3)  # type: ignore
        self.butAdd.clicked.connect(MainWindow.PushAdd)  # type: ignore
        self.butEqr.clicked.connect(MainWindow.PushEqr)  # type: ignore
        self.butAdd.clicked.connect(MainWindow.AddNumber)  # type: ignore
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "计算机"))
        self.pushButton_2.setText(_translate("MainWindow", "日历"))
        self.pushButton_3.setText(_translate("MainWindow", "页面3"))
        self.label.setText(_translate("MainWindow", "界面1"))
        self.butClr.setText(_translate("MainWindow", "c"))
        self.but7.setText(_translate("MainWindow", "7"))
        self.but4.setText(_translate("MainWindow", "4"))
        self.butAdd.setText(_translate("MainWindow", "+"))
        self.but6.setText(_translate("MainWindow", "6"))
        self.but9.setText(_translate("MainWindow", "9"))
        self.but5.setText(_translate("MainWindow", "5"))
        self.butPer.setText(_translate("MainWindow", "%"))
        self.but1.setText(_translate("MainWindow", "1"))
        self.but8.setText(_translate("MainWindow", "8"))
        self.butDel.setText(_translate("MainWindow", "<-"))
        self.but2.setText(_translate("MainWindow", "2"))
        self.but3.setText(_translate("MainWindow", "3"))
        self.butSub.setText(_translate("MainWindow", "-"))
        self.butMul.setText(_translate("MainWindow", "*"))
        self.butDiv.setText(_translate("MainWindow", "/"))
        self.butEqr.setText(_translate("MainWindow", "="))
        self.butDot.setText(_translate("MainWindow", "."))
        self.but0.setText(_translate("MainWindow", "0"))
        self.label_2.setText(_translate("MainWindow", "界面2"))
        self.label_3.setText(_translate("MainWindow", "界面3"))